NOVAAncient Refuge In the Holy Land(2004) Unearthing A Rebel Hideout Will secrets buried in an ancient cave rewrite the story of a desperate time?Nearly 2,000 years ago, a dark, inhospitable cave located in a canyon near the Dead Sea was a secret refuge for Jewish refugees fleeing for their lives from the oppressive rule of the Roman Empire. In 1960, archaeologists discovered dramatic letters written by Bar-Kokhba, the heroic Jewish rebel who led a guerrilla uprising against the Romans. Could the cave conceal mor...

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Secrets Of Lost EmpiresColosseum-Stonehenge(1997) ColosseumAncient Romans flocked to this massive amphitheater by the tens of thousands, eagerly awaiting a bloody spectacle. As each gory show played on, the audience was sure to stay cool-thanks to a billowing canopy that protected them from the blazing Mediterranean sun.But how did the Roman builders completely cover the Colosseum? Even today's engineers don't usually attempt to roof an entire arena- and those that do rely on modern materials. Not a shred of the anc...

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Secrets Of Lost EmpiresInca(2006) IncaDid they do it with mirrors? That's one of the more bizarre explanations NOVA looks into while trying to reconstruct the mysterious building techniques of the Inca, the remarkable civilization who ruled the Peruvian Andes 500 years ago."The Incas had...no arch, no wheel, no codified mathematics," marvels one anthropologist. "They couldn't even write." So how did they erect their magnificent, earthquake-enduring citadels in the clouds-without mortar, iron tools, o...

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NOVAVolcano Above The Clouds(2003) Kilimanjaro- Africa's Tallest Mountain Explore Kilimanjaro-The Breathtaking Island In The SkyAt 20,000 feet, Mount Kilimanjaro is Africa 's highest peak and also the world's tallest volcano. Rising through a shroud of mist and clouds, Kilimanjaro floats like a mirage above the African savannah. A trek up its steep flanks takes climbers through five different worlds of climate and vegetation, ranging from rainforest near the bottom to arctic ramparts of ice surrounding ...